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In two concentric circles with centre O. PQ is the diameter of outer circle and QS is the tangent line to the inner circle touching it in R and outer circle is S. Find the length of PR, if radii of two circles are 13 cm and 8 cm.
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Sep 6, 2020
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General Knowledge
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anonymous
केंद्र ओ। पीक्यू के साथ दो सांद्रिक सर्किलों में बाहरी सर्कल का व्यास होता है और क्यूएस आंतरिक सर्कल में टेंगेंट लाइन होता है जो आर में छूता है और बाहरी सर्कल होता है एस। पीआर की लंबाई पाएं, यदि दो सर्कल की त्रिज्या 13 सेमी है और 8 सेमी
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